Well, banks would still take from people as much as they can. They will force governments to regulate btc, this would make the currency just another asset they can control. End of story.
Yes the revaluation of the bitcoin will get in the world and this is the reason why the value and the price of the bitcoin is increasing more and more I hope this is the time to make the banks accept the bitcoin and to hold for the best time I can see how fast the bitcoin growth and the power increasing, the banks are good to keep the money but this is not going the benefit as it cannot increase the value and the price.